解题方法
1 . 已知某种放射性元素在一升液体中的放射量
(单位:
)与时间
(单位:年)近似满足关系式
且
.已知当
时,
;当
时,
,则据此估计,这种放射性元素在一升液体中的放射量
为10时,
大约为( )(参考数据:
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c949d2e789e61e0ee0bccb2e676a21d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40cfa0ef36c04e1640f5c15c4dfa2684.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37fa1476cf3552b9ae91ef039b1c6c80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57127a1bae23a6d3a266ffae18601f62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5f0c504e076ba1e5a89bfe35dc66b88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad5ae1b09a2cf851b4e14d21bed5b4ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9dd4dfd596e8021e85ed3e39fd1d874c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb081c6e81eff7b7142f3e56368eb937.png)
A.50 | B.52 | C.54 | D.56 |
您最近一年使用:0次
2024-01-19更新
|
231次组卷
|
2卷引用:福建省莆田市2023-2024学年高一上学期期末数学试题
名校
2 . 下列命题正确的是( )
A.“![]() ![]() |
B.![]() |
C.函数![]() ![]() |
D.函数![]() ![]() ![]() ![]() |
您最近一年使用:0次